Welcome to the North American Subaru Impreza Owners Club Sunday July 13, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC General > General Community

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 01-04-2007, 05:36 AM   #1
bmw50021
Scooby Specialist
 
Member#: 122393
Join Date: Aug 2006
Chapter/Region: Tri-State
Location: Wayne, NJ
Vehicle:
02 WRX
WRB

Default Why did Subaru use the 2.5L in the new WRX?

So why is it that Subaru felt the need to shove the 2.5L block in the 2006 WRX? Im not complaing, im actually a little bit jealous. I have a bugeye with a 2.0. Of course you still cant bang gears like in an STi cuz its the same trans. But still, way more potential for power there.
* Registered users of the site do not see these ads.
bmw50021 is offline   Reply With Quote
Old 01-04-2007, 06:55 AM   #2
Uncle Scotty
Scooby Guru
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK Houston
we have an Uncle

Default

......gas.....low octane gas in the US.......can't make decent power/torque with a 2.0 at 8:1 with 90-91 octane and have it ULEV and drivable
Uncle Scotty is offline   Reply With Quote
Old 01-04-2007, 07:18 AM   #3
keaniegenie
Scooby Specialist
 
Member#: 94494
Join Date: Aug 2005
Chapter/Region: NWIC
Location: Seattle
Vehicle:
2005 Element 92x
Black

Default

I think they also did it to stay more competitive. More car manufacturers are producing AWD cars, and several in turbo versions. Don't forget the new motor has AVCS, which the old WRX did not have.
keaniegenie is offline   Reply With Quote
Old 01-04-2007, 07:20 AM   #4
bigboss
Scooby Newbie
 
Member#: 109828
Join Date: Mar 2006
Chapter/Region: MWSOC
Location: Milwaukee, WI
Vehicle:
03 WRX wagon
Sonic Yellow

Default

I'm more of a tradition kinda guy and was mildly disappointed when i found out they stuck a 2.5L in every impreza...oh well
bigboss is offline   Reply With Quote
Old 01-04-2007, 07:23 AM   #5
Opie
Floresbian
Moderator
 
Member#: 470
Join Date: Oct 1999
Chapter/Region: South East
Location: Riverview, Florida - U.S.A.
Vehicle:
2015 Forester 2.0XT
'14 XV Crosstrek Ltd

Default

Cost effectiveness...having less engine differences = less manufacturing costs.
Opie is offline   Reply With Quote
Old 01-04-2007, 08:45 AM   #6
fastwrx25
Scooby Guru
 
Member#: 126441
Join Date: Sep 2006
Chapter/Region: SCIC
Location: TPE
Vehicle:
03 bugeye

Default

cuz they are smart? this question on the other hand...
fastwrx25 is offline   Reply With Quote
Old 01-04-2007, 08:50 AM   #7
WRXSleeper
Scooby Specialist
 
Member#: 43853
Join Date: Sep 2003
Chapter/Region: NESIC
Location: Methuen, MA
Vehicle:
2004 WRX Sedan Stg 2
Platinum Silver

Default

cause americans want torque and cheaper to build a 2.5L that is used in many cars just like nissan and it's 3.5L V6.
WRXSleeper is offline   Reply With Quote
Old 01-04-2007, 08:57 AM   #8
conker69
Scooby Specialist
 
Member#: 59692
Join Date: Apr 2004
Location: Cincinnati
Vehicle:
2005 Impreza WRX STi
WRB-Gold

Default

Quote:
Originally Posted by Uncle Scotty View Post
......gas.....low octane gas in the US.......can't make decent power/torque with a 2.0 at 8:1 with 90-91 octane and have it ULEV and drivable
Bingo. U.S. fuel is crappy.
conker69 is offline   Reply With Quote
Old 01-04-2007, 09:15 AM   #9
rkramer
Scooby Guru
 
Member#: 118209
Join Date: Jun 2006
Chapter/Region: MWSOC
Location: North Dakota
Vehicle:
2002 WRX Sedan

Default

Quote:
Originally Posted by Opie View Post
Cost effectiveness...having less engine differences = less manufacturing costs.
other then displacement, a wrx engine and a rs engine really don't share much of the internals.

hmmm, now what we REALLY need is a h6 3.0 turbo powered wrx!
rkramer is offline   Reply With Quote
Old 01-04-2007, 10:32 AM   #10
MF-DIF
Scooby Specialist
 
Member#: 62197
Join Date: May 2004
Chapter/Region: MWSOC
Location: youtube.com/PistNRods
Vehicle:
GTO /WRX/SV650

Default

Quote:
Originally Posted by rkramer View Post
other then displacement, a wrx engine and a rs engine really don't share much of the internals.
I think he is refering to the engine being shared platform with the sti, forester xt, legacy gt, baja, etc.
MF-DIF is offline   Reply With Quote
Old 01-04-2007, 10:42 AM   #11
Calamity Jesus
Scooby Guru
 
Member#: 44501
Join Date: Oct 2003
Chapter/Region: South East
Location: in a minefield of caddishness.
Vehicle:
1984 "Skeletor from
"He-Man"

Default

Quote:
Originally Posted by rkramer View Post
other then displacement, a wrx engine and a rs engine really don't share much of the internals.
No, but the Forester XT, Outback XT and Legacy GT all have the same internals. There are 4 engines in the Subaru lineup instead of 5.

STi engine.
WRX, XT, GT
2.5i
H6
Calamity Jesus is offline   Reply With Quote
Old 01-04-2007, 11:14 AM   #12
Chuck H
Scooby Specialist
 
Member#: 20442
Join Date: Jun 2002
Chapter/Region: NESIC
Location: Chelmsford, MA
Vehicle:
KTR tuned 2003 WRX
VF34 equipped, 270 whp

Default

They probably should have done it right from the get-go with the US models, since the only reason for staying with the 2.0L displacement was for WRC. The US market tends to prefer larger, torquier motors that don't have to be wound out like motorcycles to make power over S2000 type powerbands. Not that either one is really better than the other, but true "sports cars" with their narrow peaky power bands generally aren't big sellers in the US.

Now all they need to do is put a decent exhaust and a bigger turbo on the base WRX and we won't have to worry so much about the Mazdaspeeds, SRT-4's, and the other cars that are starting to eat away at the WRX's market share.
Chuck H is offline   Reply With Quote
Old 01-04-2007, 11:18 AM   #13
subielicious02
Scooby Newbie
 
Member#: 133964
Join Date: Dec 2006
Chapter/Region: NWIC
Location: portland, oregon
Vehicle:
1991 legacy
gold brown champagne ish

Default

so i understand the whole potential bit, but why is that it makes no more power then the bugeye. just curious.

http://www.autotrader.com/research/c...p?restype=used
subielicious02 is offline   Reply With Quote
Old 01-04-2007, 11:24 AM   #14
Wiscon_Mark
Scooby Guru
 
Member#: 94945
Join Date: Aug 2005
Chapter/Region: MWSOC
Location: Stevens Point, WI
Vehicle:
1995 Legacy OB 5MT
2003 Forester X 5MT

Default

Quote:
Originally Posted by subielicious02 View Post
so i understand the whole potential bit, but why is that it makes no more power then the bugeye. just curious.

http://www.autotrader.com/research/c...p?restype=used
Simple, it's underrated.

If you look at the dynos, the new WRX with the EJ255 is far outshining the old EJ205 WRX.
Wiscon_Mark is offline   Reply With Quote
Old 01-04-2007, 11:42 AM   #15
ilara72
Scooby Specialist
 
Member#: 24047
Join Date: Sep 2002
Chapter/Region: SCIC
Location: Southern California
Vehicle:
2009 STI
2002 WRX

Default

Quote:
Originally Posted by Wiscon_Mark View Post
Simple, it's underrated.

If you look at the dynos, the new WRX with the EJ255 is far outshining the old EJ205 WRX.
Or the old EJ205 was overrated. Or a combination of the two.
ilara72 is offline   Reply With Quote
Old 01-04-2007, 11:48 AM   #16
VWGrk1
Scooby Specialist
 
Member#: 57882
Join Date: Mar 2004
Chapter/Region: MWSOC
Location: Chicago
Vehicle:
2004 WRX
WRB

Default

Quote:
Originally Posted by subielicious02 View Post
so i understand the whole potential bit, but why is that it makes no more power then the bugeye. just curious.

http://www.autotrader.com/research/c...p?restype=used
Do you mean stock vs stock? Marketing reasons.

Tuning-wise, that small turbo is only going to be good for a certain amount of power in the upper-RPM range regardless of block displacement.

Are the heads the same?
VWGrk1 is offline   Reply With Quote
Old 01-04-2007, 12:55 PM   #17
brainrally
Scooby Specialist
 
Member#: 3683
Join Date: Jan 2001
Chapter/Region: MWSOC
Location: Collinsville, IL 62234
Vehicle:
2007 Impreza WRX
Shagginwagon

Default

I had the opportunity once to drive a 2002/3 WRX. I currently have a 2007 WRX. There is a considerable difference in the amount of turbo lag. I don't know if the displacement has anything to do with it or not.

I did like the WRX I drove then. It was at an autocross. Once I got used to how the turbo behaved, I found the car was fun to toss into the corners. It was a lot easier than the 2001 RS was. I can't wait to autocross my 2007 this year.
brainrally is offline   Reply With Quote
Old 01-04-2007, 12:58 PM   #18
WRXDriftR
Scooby Guru
 
Member#: 65065
Join Date: Jun 2004
Chapter/Region: Tri-State
Location: NJ
Vehicle:
04 WRX/ STi Hybrid
6MT, VF43

Default

im super jealous of the new 2.5. a Cobb stage2 setup puts down well into the 340 wheel torque range, which is just makin me itch for a 257 swap to outshine the new WRXs . haha, in my dreams
WRXDriftR is offline   Reply With Quote
Old 01-04-2007, 01:04 PM   #19
dukeduster
Scooby Specialist
 
Member#: 95789
Join Date: Sep 2005
Location: Lovington nm
Vehicle:
2002 WRX PTE
6262, hydra, 1100 FIC

Default

they did it so your tranny will explode into a million pieces so you will have to do a 6 speed swap! lol 6 speed FTW
dukeduster is offline   Reply With Quote
Old 01-04-2007, 01:20 PM   #20
Dokturseuss
Scooby Newbie
 
Member#: 102009
Join Date: Dec 2005
Chapter/Region: South East
Location: Huntsville, AL
Vehicle:
1999 impreza

Default

Quote:
Originally Posted by Chuck H View Post
They probably should have done it right from the get-go with the US models, since the only reason for staying with the 2.0L displacement was for WRC. The US market tends to prefer larger, torquier motors that don't have to be wound out like motorcycles to make power over S2000 type powerbands. Not that either one is really better than the other, but true "sports cars" with their narrow peaky power bands generally aren't big sellers in the US.

Now all they need to do is put a decent exhaust and a bigger turbo on the base WRX and we won't have to worry so much about the Mazdaspeeds, SRT-4's, and the other cars that are starting to eat away at the WRX's market share.


mazda sold something like 17k cars last year
subaru sold 20k or so
and mitsu sold something like 10k

subaru doesnt have much to worry about at the moment for turbo powered cars.

i dont think the gti is selling well either, and are threy still making the srt4?
Dokturseuss is offline   Reply With Quote
Old 01-04-2007, 01:32 PM   #21
AlpoRS
Scooby Newbie
 
Member#: 81338
Join Date: Feb 2005
Location: Portland, OR
Vehicle:
2005 2.5 RS Wagon
Crystal Gray Metallic

Default

no, srt4 was discontinued in 2004(not 100% on year) i think. The reason there is no significant is for driveability and fuel economy. The market of the average person would not like to drive a car that gets less mpg for a few more hp. As well, they would not enjoy having a lack of low end torque on a car that is marketed to a somewhat wide range of people.

In terms of wrc, yes, only reason they stuck with the 2.0 for so long, but with the possiblity of wrc going to N/A and possibly even lower displacement than 2.0, it will be interesting to see how manufacturers change their line up.
AlpoRS is offline   Reply With Quote
Old 01-04-2007, 03:17 PM   #22
Felix13
Scooby Newbie
 
Member#: 135360
Join Date: Dec 2006
Location: 505
Vehicle:
'07 WRX
Blue

Default

Quote:
Originally Posted by WRXDriftR View Post
im super jealous of the new 2.5. a Cobb stage2 setup puts down well into the 340 wheel torque range, which is just makin me itch for a 257 swap to outshine the new WRXs . haha, in my dreams
It's putting down 340 to the wheels? I didn't think it was that big of an increase.
Felix13 is offline   Reply With Quote
Old 01-04-2007, 03:36 PM   #23
Wiscon_Mark
Scooby Guru
 
Member#: 94945
Join Date: Aug 2005
Chapter/Region: MWSOC
Location: Stevens Point, WI
Vehicle:
1995 Legacy OB 5MT
2003 Forester X 5MT

Default

Quote:
Originally Posted by ilara72 View Post
Or the old EJ205 was overrated. Or a combination of the two.
Overrating a car is dangerous these days. Look at the RX-8 incident. Moron owners get all butthurt that the numbers don't line up (first of all, numbers don't mean much except to the computer-seat driver) and they sue the car company.

Yes this happened. Yes, Mazda was forced to give them all sorts of cool free stuff, and they had to knock the HP figure down 13 (yes, 13 whole friggen chp) HP to be more accurate.
Wiscon_Mark is offline   Reply With Quote
Old 01-04-2007, 03:43 PM   #24
LastResort
Scooby Guru
 
Member#: 99289
Join Date: Oct 2005
Default

You also have the changing in SAE rating method. It dinged the STI a few ponies.
LastResort is offline   Reply With Quote
Old 01-04-2007, 03:50 PM   #25
nhmtns
Scooby Guru
 
Member#: 94283
Join Date: Aug 2005
Chapter/Region: NESIC
Location: Mt. Washington Valley, NH
Vehicle:
'05 OBXT Stage 2
Min bil är svart

Default

Quote:
Originally Posted by bmw50021 View Post
So why is it that Subaru felt the need to shove the 2.5L block in the 2006 WRX?
Because I told them to.
nhmtns is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Why did Subaru not equip 2.5i's with a rear sway bar? SubieSubie Impreza Forum 26 06-30-2012 01:59 AM
Anyone from Australia with the 2.5L 9.0:1 compression WRX? Jon [in CT] Factory 2.5L Turbo Powertrain 3 12-05-2005 12:14 AM
Why did I get a Glamour magazine in the mail? catass Off-Topic 6 10-16-2005 12:01 AM
To the 2 Subarus in the Austin Music Video GoodFinder Texas Impreza Club Forum -- TXIC 2 06-29-2002 06:03 PM


All times are GMT -4. The time now is 01:58 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.